CN114576315A

CN114576315A - Speed reducer for stirring with large speed ratio

Info

Publication number: CN114576315A
Application number: CN202210483255.2A
Authority: CN
Inventors: 胡炜
Original assignee: Ward Transmission Technology Tianjin Co ltd
Current assignee: Ward Transmission Technology Tianjin Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-06-03
Anticipated expiration: 2042-05-06
Also published as: CN114576315B

Abstract

The invention provides a speed reducer for stirring with a large speed ratio, which comprises a power motor, a speed reduction gear set and a torque support arm, wherein one end of the power motor is fixedly connected to one end of the speed reduction gear set, a transmission shaft of the power motor is provided with a power gear, the periphery of the power gear is meshed to the inside of the speed reduction gear set, the periphery of the speed reduction gear set is hinged to one end of the torque support arm, and the other end of the torque support arm is fixedly arranged to a fixed position. According to the speed reducer for stirring with a large speed ratio, the speed reduction gear set is hinged to one end of the moment supporting arm, the moment supporting arm is fixedly connected to the fixed position, the speed reducer is convenient to install, can swing along with a working machine through the moment supporting arm in the stirring process, the stress generated in the stirring process is released, and the service life of the speed reducer is prolonged.

Description

Speed reducer for stirring with large speed ratio

Technical Field

The invention belongs to the field of material stirring, and particularly relates to a speed reducer for stirring at a large speed ratio.

Background

The stirring of partial organic materials in the prior art is initial granular materials, the granular materials are gradually melted along with the rise of the working condition temperature, when the initial granular materials and the liquefied materials are mixed, the viscosity of the materials is high, the power input with low rotating speed and large torque is needed during stirring, and the rotating speed is required to be 0.6r/min, so that strict requirements are provided for a driving part.

Disclosure of Invention

In view of the above, the present invention provides a speed reducer for stirring with a large speed ratio, so as to solve the problems of the prior art that the stirring speed reducer with a large speed ratio is inconvenient to maintain due to large volume and heavy weight, and has complex and insecure installation and potential production safety hazards.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the utility model provides a speed reducer is used in stirring of big velocity ratio, includes power motor, reduction gear group and moment support arm, power motor's one end fixed connection to reduction gear group's one end, and power motor's transmission shaft installation power gear, inside power gear peripheral meshing to reduction gear group, reduction gear group peripheral articulated to the one end of moment support arm, and the other end fixed mounting of moment support arm to fixed position.

Further, the moment support arm includes the pivot, and the both ends of pivot rotate respectively and cup joint to an axle bed, and every axle bed is equal fixed mounting to fixed position, and the axle bed is peripheral to rotate and cup joint two rocking arms, and the one end of every rocking arm all hinges to reduction gear set's periphery through a rocking bar.

Furthermore, the reduction gear set comprises a first shell and a first planetary bag and a second planetary bag which are arranged in the first shell, one end of the first shell is fixedly connected to one end of the power motor, and the power gear displaces in the first shell.

Furthermore, first planet package includes a plurality of first planet wheels of the peripheral equipartition of power gear, and every first planet wheel periphery all meshes to the periphery of power gear, and first casing inner circle sets up first internal gear, and every first planet wheel periphery meshes to the inner circle of first internal gear, and first axis is cup jointed in the rotation of first planet wheel, and the one end of every first axis is rotated and is cup jointed the one end of first output shaft, and the other end fixed connection of first output shaft is to the one end of second planet package.

Furthermore, the second planet package includes a plurality of second planet wheels of first input shaft and peripheral equipartition, the one end equipartition sawtooth of first input shaft, the other end fixed connection of first input shaft to the one end of first output shaft, the periphery of every second planet wheel all meshes to the one end of first input shaft, first casing inner circle sets up the second internal gear, the periphery of second planet wheel meshes to the inner circle of second internal gear, the middle part of second planet wheel rotates cup joints the second axis, the centraxonial one end of every second rotates the one end of cup joint to the one end of second output shaft.

Furthermore, the reduction gear set further comprises a second shell and a third planet bag arranged inside the second shell, one end of the second shell is fixedly connected to one end of the first shell, the third planet bag comprises a second input shaft and a plurality of third planet wheels uniformly distributed on the periphery of the second input shaft, saw teeth are uniformly distributed on one end of the second input shaft, the other end of the second input shaft is fixedly connected to one end of a second output shaft, gaps are formed between the periphery of the second input shaft and the second shell, the periphery of each third planet wheel is meshed to one end of the second input shaft, a third inner gear is arranged on the inner ring of the second shell, the periphery of each third planet wheel is meshed to the inner ring of the third inner gear, the middle part of each third planet wheel is rotatably sleeved with a third middle shaft, and one end of each third middle shaft is rotatably sleeved to one end of the third output shaft.

Furthermore, the reduction gear set comprises a plurality of third planet packages, a second shell is arranged on the periphery of each third planet package, the third planet packages are sequentially connected end to end, and the second shells are sequentially connected end to end.

Furthermore, the reduction gear also comprises a third shell and a fourth planet bag arranged in the third shell, one end of the third shell is fixedly connected to one end of the second shell, the periphery of the third shell is hinged to one end of the torque supporting arm, the fourth planet bag comprises a third input shaft and a plurality of fourth planet wheels uniformly distributed on the periphery of the third input shaft, saw teeth are uniformly distributed on one end of the third input shaft, the other end of the third input shaft is fixedly connected to one end of a third output shaft, the periphery of the third input shaft is rotatably sleeved on an inner ring of the third shell through a first bearing, the periphery of each fourth planet wheel is meshed with one end of the third input shaft, a fourth inner gear is arranged on an inner ring of the third shell, the periphery of each fourth planet wheel is meshed with an inner ring of the fourth planet wheel, the middle part of each fourth planet wheel is rotatably sleeved on a fourth middle shaft, one end of each fourth middle shaft is rotatably sleeved on one end of the fourth output shaft, the periphery of the fourth output shaft is rotatably sleeved on an inner ring of the third shell through a second bearing, the other end of the fourth output shaft is connected with force bearing equipment.

Compared with the prior art, the speed reducer for stirring at a high speed ratio has the following beneficial effects:

(1) according to the speed reducer for stirring with a large speed ratio, the speed reduction gear set is hinged to one end of the moment support arm, the moment support arm is fixedly connected to the fixed position, the speed reducer is convenient to install, can swing along with a work machine through the moment support arm in the stirring process, releases stress generated in the stirring process, and prolongs the service life of the device.

(2) According to the speed reducer for stirring with the large speed ratio, the power motor is in suspension connection with the speed reduction gear set, the first planetary bag and the second planetary bag are arranged in the same shell, the design requirement of the speed reducer with the large speed ratio and the high torque is met, and the speed reducer is compact in structure, small in size, large in torque and simple and convenient to install.

(3) According to the speed reducer for stirring with the large speed ratio, the third planetary bags can be overlapped according to working condition requirements, and the third planetary bags are of the floating structure, so that the influence of installation errors on gears is avoided, the meshing between the transmission gears is ensured to be firm, the reliability of the device is improved, and the service life of the device is prolonged.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a speed reducer for stirring with a high speed ratio according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a speed reducer for high-speed stirring according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the first housing, first planetary gearset, and second planetary gearset assembly of an embodiment of the present invention;

FIG. 4 is a cross-sectional view of the second housing and third planetary gearset assembly in accordance with an embodiment of the present invention;

fig. 5 is a schematic cross-sectional view illustrating the third housing and the fourth satellite bag according to the embodiment of the invention.

Description of reference numerals:

1-a power motor; 11-a drive shaft; 2-a reduction gear set; 21-first planet bag; 211-a first planet; 212-a first medial axis; 213-a first output shaft; 22-a second planetary package; 221-a second planet; 222-a second medial axis; 223-a second output shaft; 23-third planet bag; 231-a second input shaft; 232-third planet gear; 233-third middle axis; 234 — a third output shaft; 24-a fourth satellite bag; 241-a third input shaft; 242-a fourth output shaft; 243-second bearing; 244-fourth starwheel; 245-fourth medial axis; 25-a first housing; 26-a second housing; 27-a third housing; 3-a moment support arm; 31-a rotating shaft; 32-shaft seat; 33-a rocker arm; 34-rocker.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in figures 1-5, a speed reducer for stirring with large speed ratio comprises a power motor 1, a reduction gear set 2 and a torque support arm, wherein one end of the power motor 1 is directly connected with one end of the reduction gear set 2 through a coupler, the power motor 1 is directly hung at the end of the reduction gear set 2 in a middle box mode during connection, so that the installation is convenient, the installation and the direct centering are convenient, as shown in figure 2, the embodiment is a five-stage planetary speed reducing structure, the whole speed ratio reaches 2518, the rotating speed of the power motor 1 is 1500r/min, the output rotating speed is only 0.6r/min, the low output rotating speed and the large required output torque are met, a power gear is installed on a transmission shaft 11 of the power motor 1, the periphery of the power gear is meshed into the reduction gear set 2, the power gear of the power motor 1 is directly used as an output sun gear, and the reduction of the installation size is facilitated, the periphery of the reduction gear set 2 is hinged to one end of the torque support arm, and the other end fixed mounting of moment support arm to fixed position, for simple to operate and the wobbling operating mode of working machine pivot 31, reduction gear unit 2 is supported by the moment support arm, the moment support arm base passes through the bolt fastening on the ground, 2 output end lug connections of reduction gear unit are on work pivot 31, whole moment support arm is supporting whole drive division and because the moment support arm can swing along with work pivot 31, the stress that produces among the released stirring process, the life of improvement device.

The moment support arm comprises a rotating shaft 31, two ends of the rotating shaft 31 are respectively rotatably sleeved on a shaft seat 32, each shaft seat 32 is fixedly installed at a fixed position, two rocker arms 33 are rotatably sleeved on the periphery of the rotating shaft 31, the connecting positions of the rocker arms 33 and the rotating shaft 31 are supported by sliding bearings, and one end of each rocker arm 33 is hinged to the periphery of the reduction gear set 2 through a rocker arm 34.

As shown in fig. 3, the reduction gear set 2 includes a first housing 25 and a first planetary bag 21 and a second planetary bag 22 disposed inside the first housing 25, one end of the first housing 25 is fixedly connected to one end of the power motor 1, the power gear is disposed inside the first housing 25, the first planetary bag 21 includes a plurality of first planetary wheels 211 uniformly distributed on the periphery of the power gear, the periphery of each first planetary wheel 211 is engaged with the periphery of the power gear, a first internal gear is disposed on the inner ring of the first housing 25, the periphery of each first planetary wheel 211 is engaged with the inner ring of the first internal gear, the first planetary wheels 211 are rotatably sleeved with a first central shaft 212, one end of each first central shaft 212 is rotatably sleeved with one end of a first output shaft 213, the other end of the first output shaft 213 is fixedly connected to one end of the second planetary bag 22, the second planetary bag 22 includes a first input shaft and a plurality of second planetary wheels 221 uniformly distributed on the periphery thereof, one end of the first input shaft is uniformly distributed with serrations, the other end of the first input shaft is fixedly connected to one end of the first output shaft 213, the periphery of each second planet wheel 221 is engaged with one end of the first input shaft, a second internal gear is arranged on the inner ring of the first shell 25, the periphery of each second planet wheel 221 is engaged with the inner ring of the second internal gear, the middle part of each second planet wheel 221 is rotatably sleeved with the second middle shaft 222, one end of each second middle shaft 222 is rotatably sleeved with one end of the second output shaft 223, in order to meet the requirement of minimizing the volume of the reduction gear set 2, the first planet bag 21 and the second planet bag 22 are compactly installed and share one shell, the first internal gear and the second internal gear are fixedly installed in the first shell 25, the first internal gear, the second internal gear and the first shell 25 are cast into an integrated structure made of ADI materials, the power gear of the motor 1 has the function of a sun shaft of a planetary structure and directly provides power for the first-stage planet bag, when power is transmitted to the second-stage planetary bag, the integral inner gear ring in the first shell 25 is used by the first-stage and second-stage planets, so that the strength is high, the irregular shape can be met, the problem of processing difficulty is solved, and the product size is reduced to the maximum extent by the aid of the structural form.

The reduction gear set 2 further comprises a second shell 26 and a third planetary bag 23 arranged inside the second shell 26, one end of the second shell 26 is fixedly connected to one end of the first shell 25, the third planetary bag 23 comprises a second input shaft 231 and a plurality of third planetary wheels 232 uniformly distributed on the periphery of the second input shaft 231, saw teeth are uniformly distributed on one end of the second input shaft 231, the other end of the second input shaft 231 is fixedly connected to one end of a second output shaft 223, a gap is formed between the periphery of the second input shaft 231 and the second shell 26, the periphery of each third planetary wheel 232 is meshed to one end of the second input shaft 231, a third internal gear is arranged on the inner ring of the second shell 26, the periphery of each third planetary wheel 232 is meshed to the inner ring of the third internal gear, the middle of each third planetary wheel 232 is rotatably sleeved with a third central shaft 233, and one end of each third central shaft 233 is rotatably sleeved to one end of a third output shaft 234.

In implementation, the reduction gear set 2 comprises a plurality of third planetary bags 23, a second shell 26 is arranged on the periphery of each third planetary bag 23, the third planetary bags 23 are sequentially connected end to end, the second shells 26 are sequentially connected end to end, as shown in fig. 4, a connection mode that the two third planetary bags 23 are connected in series is adopted, the third planetary bags 23 are of a floating structure, the gear part is made of 18CrNiMo7-6 medium carbon alloy steel, and a heat treatment mode is adopted, so that the hardness and the strength of the gear part are greatly enhanced. When the number of stages is larger and larger, the torque born by each stage is larger, and the speed reducer with small volume meeting the use requirement can be manufactured by reasonably designing and adding high-strength materials.

The reduction gear further comprises a third shell 27 and a fourth planet packet 24 arranged in the third shell 27, one end of the third shell 27 is fixedly connected to one end of the second shell 26, the periphery of the third shell 27 is hinged to one end of the torque supporting arm, the fourth planet packet 24 comprises a third input shaft 241 and a plurality of fourth planet wheels 244 uniformly distributed on the periphery of the third input shaft 241, saw teeth are uniformly distributed on one end of the third input shaft 241, the other end of the third input shaft 241 is fixedly connected to one end of the third output shaft 234, the periphery of the third input shaft 241 is rotatably sleeved on an inner ring of the third shell 27 through a first bearing, the periphery of each fourth planet wheel 244 is meshed with one end of the third input shaft 241, a fourth internal gear is arranged on the inner ring of the third shell 27, the periphery of the fourth planet wheel 244 is meshed with an inner ring of the fourth internal gear, the middle part of the fourth planet wheel 244 is rotatably sleeved on a fourth middle shaft 245, one end of each fourth middle shaft 245 is rotatably sleeved on one end of the fourth output shaft 242, the periphery of the fourth output shaft 242 is rotatably sleeved on the inner ring of the third shell 27 through a second bearing 243, and the other end of the fourth output shaft 242 is connected with force-bearing equipment.

The whole speed reducer for large-speed-ratio stirring is also provided with an online monitoring system, a vibration and temperature integrated sensor is arranged at the transmission gear, the middle shaft and the bearing point position of the speed reduction gear set 2 to monitor the vibration and the temperature of rotating parts such as a bearing, a rotating shaft 31 and the like, an oil product analysis sensor is arranged at the connecting part of the first shell 25, the second shell 26 and the third shell 27 to monitor the quality of lubricating oil in real time, and meanwhile, an acquisition station is arranged outside the shell to receive a wireless module which is used for transmitting detection information.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a speed reducer for stirring of big velocity ratio which characterized in that: including power motor (1), reduction gear group (2) and moment support arm (3), the one end fixed connection of power motor (1) to the one end of reduction gear group (2), and transmission shaft (11) installation power gear of power motor (1), inside the peripheral meshing of power gear to reduction gear group (2), reduction gear group (2) periphery articulates the one end to moment support arm (3), and the other end fixed mounting of moment support arm (3) to fixed position.

2. The reducer for large-speed ratio stirring according to claim 1, wherein: moment support arm (3) are including pivot (31), and the both ends of pivot (31) rotate respectively and cup joint to an axle bed (32), and equal fixed mounting of every axle bed (32) is to fixed position, and pivot (31) periphery is rotated and is cup jointed two rocking arms (33), and the one end of every rocking arm (33) all articulates the periphery to reduction gear group (2) through one rocker (34).

3. The reducer for large-speed ratio stirring according to claim 1, wherein: the reduction gear set (2) comprises a first shell (25) and a first planetary bag (21) and a second planetary bag (22) which are arranged in the first shell, one end of the first shell (25) is fixedly connected to one end of the power motor (1), and the power gear is located in the first shell (25).

4. The reducer for large-speed ratio stirring according to claim 3, wherein: first planet package (21) are including a plurality of first planet wheel (211) of the peripheral equipartition of power gear, every first planet wheel (211) periphery all meshes to the periphery of power gear, first casing (25) inner circle sets up first internal gear, the peripheral inner circle that meshes to first internal gear of every first planet wheel (211), first axis (212) are cup jointed in first planet wheel (211) rotation, the one end of every first axis (212) is rotated and is cup jointed to the one end of first output shaft (213), the other end fixed connection of first output shaft (213) is to the one end of second planet package (22).

5. The reducer for large-speed ratio stirring according to claim 4, wherein: the second planet package (22) comprises a first input shaft and a plurality of second planet wheels (221) uniformly distributed on the periphery of the first input shaft, saw teeth are uniformly distributed at one end of the first input shaft, the other end of the first input shaft is fixedly connected to one end of the first output shaft (213), the periphery of each second planet wheel (221) is meshed with one end of the first input shaft, a second inner gear is arranged on the inner ring of the first shell (25), the periphery of each second planet wheel (221) is meshed with the inner ring of the second inner gear, the middle of each second planet wheel (221) is rotatably sleeved with a second middle shaft (222), and one end of each second middle shaft (222) is rotatably sleeved with one end of the second output shaft (223).

6. The reducer for large-speed ratio stirring according to claim 5, wherein: the reduction gear set (2) further comprises a second shell (26) and a third planet bag (23) arranged in the second shell, one end of the second shell (26) is fixedly connected to one end of the first shell (25), the third planet bag (23) comprises a second input shaft (231) and a plurality of third planet wheels (232) uniformly distributed on the periphery of the second input shaft, saw teeth are uniformly distributed on one end of the second input shaft (231), the other end of the second input shaft (231) is fixedly connected to one end of a second output shaft (223), a gap is formed between the periphery of the second input shaft (231) and the second shell (26), the periphery of each third planet wheel (232) is meshed to one end of the second input shaft (231), a third inner ring gear is arranged on the second shell (26), the periphery of each third planet wheel (232) is meshed to the inner ring of the third inner ring gear, and the middle part of each third planet wheel (232) is rotatably sleeved with the third middle shaft (233), one end of each third middle shaft (233) is rotatably sleeved to one end of the third output shaft (234).

7. The reducer for large-speed ratio stirring according to claim 6, wherein: the reduction gear set (2) comprises a plurality of third planet packages (23), a second shell (26) is arranged on the periphery of each third planet package (23), the third planet packages (23) are sequentially connected end to end, and the second shells (26) are sequentially connected end to end.

8. The reducer for large-speed ratio stirring according to claim 6, wherein: the reduction gear further comprises a third shell (27) and a fourth planet packet (24) arranged in the third shell, one end of the third shell (27) is fixedly connected to one end of the second shell (26), the periphery of the third shell (27) is hinged to one end of the moment supporting arm (3), the fourth planet packet (24) comprises a third input shaft (241) and a plurality of fourth planet wheels (244) uniformly distributed on the periphery of the third input shaft, saw teeth are uniformly distributed on one end of the third input shaft (241), the other end of the third input shaft (241) is fixedly connected to one end of a third output shaft (234), the periphery of the third input shaft (241) is rotatably sleeved to the inner ring of the third shell (27) through a first bearing, the periphery of each fourth planet wheel (244) is meshed to one end of the third input shaft (241), the inner ring of the third shell (27) is provided with a fourth inner gear, and the periphery of the fourth planet wheels (244) is meshed to the inner ring of the fourth inner gear, the middle part of the fourth planet wheel (244) is rotatably sleeved with a fourth middle shaft (245), one end of each fourth middle shaft (245) is rotatably sleeved with one end of a fourth output shaft (242), the periphery of the fourth output shaft (242) is rotatably sleeved with the inner ring of the third shell (27) through a second bearing (243), and the other end of the fourth output shaft (242) is connected with force-bearing equipment.